Apparatus for removing ashes and clinkers falling from the grates of boilers or other furnaces



Sept. 30 1924. 15mm? 7 A'." HOSSAC-K APPARATUS FOR REMOVING ASHES AND GLINKERS FALLING FROM THE GRATES BOILERS OTHER FURNACES ed Jan. 1922 k k W A P k 1;" 2 n Q k e f r aw -i T: 0Q t l i 6 0 U k L15 7 K AZZeI-Z' Hoasaclf Patented Sept. 30, 1924..

I tenant snares PATENT Farce.

ALBERT HOSSAGK, O'F JOHANNESBURG, TRANSVAAL, SOUTH AFRICA, ASSIGNOR OF ONE-HALF TO THE VICTORIA FALLS AND TRANSVAAL POWER COMPANY LIM- ITED, F JOHANNESBURG, TRANSVAAL, SOUTH AFRICA.

APPARATUS FOR REMOVING- ASHES .AND CLINKERS FALLING FROM THE GRATES 0F 1 BOILERS OR OTHER FURNACES.

Application filed January 12, 1922. Serial No. 528,731.

To all whom it may concern:

Be it known that .I, ALBERT HossAoK,-

subject of the King of Great Britain, residing at 43 Observatory Avenue, Observatory, 5 Johannesburg, Transvaal, South Africa,

have invented certain new and useful Improvements in Apparatus for Reinoving Ashes and Clinkers Falling from the Grates of Boilers or Other Furnaces, of which the following is a specification.

This invention relates to \apparatus for the removal of ashes and clinkers falling from the grates of boilers or other furnaces of the type in which the refuse material is discharged under a water seal into a container and removed by mechanical means.

The object of the invention is to provide an installation which is economical in first.

cost and upkeep and which ensures that the 29 refuse material shall be discharged from the water in a comparatively dry state so that it can be handled easily without further treatment. A further object is to avoid grit and water coming into contact with any bearing surface.

According to this invention a wheel fitted with vanes, paddles or the like is arranged, in conjunction with a tank designed to receive the ashes falling from the furnace, in such a way that the bearing is well clear of the surface of the water so that there is no possibility'of access of grit or water to the bearing surfaces and so that the device discharges the refuse ractically free from water over the edge of the tank. The action of the wheel is a lifting action as distinct from a scraping action and is not wholly dependent on the shape of the tank in which it revolves. Moreover matters are so arranged that the water in the tank is kept cool by an inlet pipe and .an overflow, in such a way, that the flow of water from the tank is independent of and distinct from the discharge of the refuse. The discharged material can be removed by hand, but preferably it is caused to fall into a longitudinal conveyorrunning alongside or underneath the tanks. If considered desirabl more than one tank can be used with each boiler or furnace.

The wheel may be driven either continuously by gearing or intermittently by a ratchet and pawl mechanism, the motion being obtained from the reciprocating motion of a rope or rod to which the pawl levers are detachably secured, the rope or rod extending along the entire length of a row of boilers and lmparting motion to any panying drawings in which;

Fig. 1 shows a longitudinal section of an apparatus in use for one boiler, and

Fig. 2 shows a cross section.

a is a tank fitted beneath ash hoppers b of a boiler and filled with water to a con-' i stant level which is maintained b an overflow c and a supply pipe at supp ying cold water whereby the water in the tank is kept cool.

e is a paddle wheel having twelve paddles f, the spindle being journaled at h by means of a shaft in a long bearing, and having at its upper extremity a ratchet wheel 2'.

On this ratchet wheel a pawl j is provided the carrier of which is clamped to arope k by a clamp Z. The carrier is is rotatably secured on the shaft which carries the paddle wheel and the pawl j is pivotally secured to said carrier. The rope is given a reciprocating motion by means of the connectin rod m working in conjunction with a lever n pivoted to a fixed bracket 0. The connecting rod is to the lever at it at g.

The rope is kept taut by means of a lever r pivoted to a bracket s and having weights 2 applied to a platform a.

The, rope is fixed to the lever r at v. The. wheel w is suitably geared to the motor driving the band conveyor m.

In action the wheel e conveys ash and clinkers from the tank a and discharges p and the rope is xed to them onto the band conveyor m,

ivoted The clamps Z are readil detachable so that where there are severe sets of extractors driven from one ro any one can be placed outof action as esired.

I claim:

1. Apparatus for removing ashes comprising a tank adapted to be partly filled with water and adapted for dispositlon under an ash hopper, one side of said tank being inclined at an angle of approximately 45 and extending above the level of the water; a bearing located above the waterv level and'secured to the side of the tank opposite to said inclined side; a 7 wheel having "a shaft journaled in sai hearing, said wheel being adjacent to and its plane of rotation being parallel to said inclined side; a ratchet and pawl mechanism for intermittently operating said wheel to remove the ash from the tank over the edge addle with water and adapted for disposition under an ash hopper, one side of said tank being inclined and extending above the level of the water; a bearing secured to the side of the tank'op osite to said inclined side, saidbearin'g being entirely above the level of the water in the tank; a paddle Wheel having a shaft journaled in said bearing, said wheel being adjacent to and its plane "of rotation being parallel to said inclined side; and means for operating said wheel to remove the ash from the tank over the edge of the inclined side.

-In testimony whereof I afiix my signature. ALBERT HOSSACK.

for removing ashes com-- 

